Lower temperature solutions where secondary air is
normally employed to achieve process temperatures
Patented technology, robust design
FEATURES and BENEFITS
Patented lean premix technology
Low NOx and CO emissions without the use of FGR
NOx emissions of less than 10ppm in many applications
High turndown capability
Low fan horsepower requirement
Robust, proven, reliable burner design. Successful installations over 25 years.
The majority of the combustion is completed in the companion reaction chamber,
minimizing process infl uences on NOx emissions.
Compact fl ame geometry allows signifi cant reductions in fl ame protection tube and
furnace size resulting in a lower installed cost of LEx systems.
Main (Primary) combustion air can be heated up to 700°F for increased effi
(Ambient air required for radial air supply).
Combustion air supply is split between main (primary) air and radial air connections on larger burner sizes.
Fuel gas is split between primary gas and radial gas connections.
Radial gas is used at start-up and for stabilization of the primary (lean) core.
Primary gas feeds internal mixers to create a lean primary zone, typically operated at 60-70% excess air.
Main air pressure: 10-15 in. w.g.
Gas pressure: 8 PSIG
Minimum primary air pressure required for continuous operation: 0.75 in.w.g.
Preset air-to-gas ratio turndown of greater than 4:1, with appropriately designed combustion system.
Thermal turndowns of 20:1 are also possible in most applications
MAIN COMBUSTION AIR INLET
RADIAL AIR INLET
RADIAL GAS INLET
4213 Emissions Data
Burner Rated for 15.5 MMBTU/h HHV
40 45 50 55 60 65 70 75 80
Excess Air %
NOx (ppm cor
o 3% 0